On 09/25/2014 07:27 AM, Sjoerd Simons wrote:
Playing a bit with todays linux-next on my jetson, it seems this patch is
still required for enabling the GPU. Is there anything blocking it (firmware
not available yet in liux-firmware?)
I think initially I was waiting for the DRM patch "drm/nouvea: support
for probing platform devices" to be applied, but it looks like that's
been applied already, so only patches 4 and 5 in this series are still
outstanding.
Alex, wasn't there also some issue where the VPR register had to be
programmed, and if it wasn't there'd be a hang when the GPU registers
were touched? If we've added code to Nouveau/tegradrm to detect that and
avoid the problem, then I guess we can commit these last two patches for
3.19. A resend after the 3.18 merge window might help.
On Mon, May 19, 2014 at 06:24:10PM +0900, Alexandre Courbot wrote:
Signed-off-by: Alexandre Courbot <[email protected]>
---
arch/arm/boot/dts/tegra124-jetson-tk1.dts | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
index e31fb61a81d3..15a194d1277f 100644
--- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
+++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
@@ -30,6 +30,12 @@
};
};
+ gpu@0,57000000 {
+ status = "okay";
+
+ vdd-supply = <&vdd_gpu>;
+ };
+
pinmux: pinmux@0,70000868 {
pinctrl-names = "default";
pinctrl-0 = <&state_default>;
@@ -1505,7 +1511,7 @@
regulator-always-on;
};
- sd6 {
+ vdd_gpu: sd6 {
regulator-name = "+VDD_GPU_AP";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <1200000>;
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